Class SemiringCsrProperties

java.lang.Object

org.flag4j.linalg.ops.sparse.csr.semiring_ops.SemiringCsrProperties

public final class SemiringCsrProperties
extends Object

Utility class containing methods useful for determining certain properties of a sparse CSR Semiring matrix.

Method Summary

Modifier and Type	Method	Description
static <T extends Semiring<T>> boolean	isIdentity(AbstractCsrSemiringMatrix<?,?,?,T> src)	Checks if the src matrix is the identity matrix.
static <T extends Semiring<T>> boolean	isIdentity(Shape shape, T[] entries, int[] rowPointers, int[] colIndices)	Checks if the src matrix is the identity matrix.
static <T extends Semiring<T>> boolean	isTriL(Shape shape, T[] entries, int[] rowPointers, int[] colIndices)	Checks if a sparse CSR matrix is lower-triangular.
static <T extends Semiring<T>> boolean	isTriU(Shape shape, T[] entries, int[] rowPointers, int[] colIndices)	Checks if a sparse CSR matrix is upper-triangular.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

isTriU

public static <T extends Semiring<T>> boolean isTriU(Shape shape,
 T[] entries,
 int[] rowPointers,
 int[] colIndices)

Checks if a sparse CSR matrix is upper-triangular.

Parameters:

shape - Shape of the CSR matrix.

entries - Non-zero data of the CSR matrix.

rowPointers - Non-zero row pointers of the CSR matrix.

colIndices - Non-zero column indices of the CSR Matrix.

Returns:

true if the CSR matrix is upper-triangular; false otherwise.

isTriL

public static <T extends Semiring<T>> boolean isTriL(Shape shape,
 T[] entries,
 int[] rowPointers,
 int[] colIndices)

Checks if a sparse CSR matrix is lower-triangular.

Parameters:

shape - Shape of the CSR matrix.

entries - Non-zero data of the CSR matrix.

rowPointers - Non-zero row pointers of the CSR matrix.

colIndices - Non-zero column indices of the CSR Matrix.

Returns:

true if the CSR matrix is lower-triangular; false otherwise.

isIdentity

public static <T extends Semiring<T>> boolean isIdentity(Shape shape,
 T[] entries,
 int[] rowPointers,
 int[] colIndices)

Checks if the src matrix is the identity matrix.

Parameters:

src - The matrix to check if it is the identity matrix.

Returns:

True if the src matrix is the identity matrix. False otherwise.

isIdentity

public static <T extends Semiring<T>> boolean isIdentity(AbstractCsrSemiringMatrix<?,?,?,T> src)

Checks if the src matrix is the identity matrix.

Parameters:

src - The matrix to check if it is the identity matrix.

Returns:

True if the src matrix is the identity matrix. False otherwise.